MUST PV1800 VPM Series High Frequency Home Solar Inverter

This is a multi-function inverter/charger, combining functions of inverter, MPPT50A/80A solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.

• Rated power 1KW to 5KW

• Pure sine wave output

• Smart LCD setting (Working modes, Charge Current, Charge Voltage, etc).

• Bult in MPPT50A/80A solar charge controller

• Combining solar system, AC utility, and battery power source to supply continuous power

• Overload, short circuit and Deep discharge protection

• Cold start function

• Support USB, RS485 monitoring function with free CD

• WIFI remote monitoring (optional)

• Compatible to generator

• 3KW-5KW support parallel function(optional)

Note：Dear Due to the upgrade of product appearance, the product you purchased is a new appearance, function exactly the same，please understand

MUST Energy's PV1800 hybrid inverter converts 3KW of solar power from 24V to 145V, with MPPT tracking and Wi-Fi monitoring. Ideal for off-grid systems.

Dear friends, if your shipping address is in an EU country, you can consider buying the above model, you can choose to ship it from Poland, and it can be delivered in three days, click on the picture to go directly to

MUST Energy is the C-brand of MUST, except the brand logo is different, other functions are exactly the same as the model

Introducing the MUST PV1800 VPM, a hybrid off-grid solar inverter that combines functions of an inverter, MPPT solar charger, and battery charger. This compact device offers uninterruptible power support with smart features like customizable LCD displays, overload protection, and USB/Rs485 monitoring capabilities. Optional features include WiFi remote monitoring and parallel function compatibility with generators up to 3kW.

This solar inverter features a monitoring system with USB connectivity for computer monitoring. The LCD display shows working modes, parameters, and status indicators, including charging, AC output, and fault indicators. It also has function buttons and provides details on utility-tie, bypass, and off-grid states.

1. How to choose an inverter that suits you?

Please confirm your loads, battery capacity and voltage, solar panel string capacity; you can contact us for professional help

2. Who we are?

We are a MUST source manufacturer, selling original MUST products

3. What Is an Inverter Charger with MPPT?

It is an Integrated unit wit MPPT solar charge controller, pure sine wave inverter, and battery charger in one compact unit to let you enjoy the stable power from the sun and the utility grid to keep you powered under any circumstances. PV1800 VPM 3KW Solar Inverter Charger combines solar charging, AC/generator battery charging, and battery inverting into one convenient solution to take your off-grid system to the hybrid level.

4. Can I use this inverter to charge my batteries?

Yes. Compatible with 24V battery banks, this solar inverter charger keeps your battery charged with solar panels and AC/generator.

5. Can I use the inverter with a 48V system?

No. This model can only work with 24V battery system.

6. How many solar panels can I connect to this inverter?

For example Vmp 30.9Vdc, Imp 8.42A, Voc 37.7Vdc, Isc 8.89A 250W solar panel, you can connect 9pcs of it to our inverter, 3S3P

7. How do I hook up the Inverter? What size cable should I use, and is it included?

When connecting the inverter to the battery and solar panels, please read all of the instructions and cautions in the manual before beginning the installation. The minimum recommended wiring gauge for battery wiring is 4AWG(for a 100AH battery) 6AWG(for a 200AH battery), PV wiring is 8AWG, AC input and out wiring is 12AWG.

Incorrect or improper connection points and corroded wires can cause great heat to melt the wire insulation, burning surrounding materials, and even cause fire, so ensure that the connection is tightened

8. Can I use the solar inverter without batteries when using PV or Mains?

No, at minimum you need to have batteries connected to the unit.But our PV1800/PH1800 PRO series can run without battery. You can have a look at our store

9. Does this solar inverter limit PV current? I'm not getting my full power?

When setting up the solar inverter, ensure Program 11 (PV Charging Current) and Program 13 (Maximum Charge Current) are set to their maximum to ensure no PV current clipping.

10. Can I use theWIFI Module to monitor the inverter from my phone? Which WIFI Module should I buy?

Yes. The WIFI-PLUG is compatible with this inverter.Please choose your inverter with WIFI-PLUG to order

11. Warranty Policy

The MUST products we sell are covered by a one-year warranty. In case of product failure, contact our after-sales engineers for help in the first instance. If necessary, we will send you free parts (within the warranty period).

Wrong way of operation may cause the product to burn out, such as not following the standard installation when connecting cables. Please read the manual carefully when installing.

12. Shipping Policy

Normally we send the goods the second days after payments. We use air cargo to send the goods. Aliexpress Standard Shipping arrive at 15-20days(EU country arrive at 7-10 days), DHL/FedEx/UPS arrive at 7-10 days, Cainiao Heavy Line arrive at 20 days(EU 15-20 Days).